Wed, 10/28/2015 - 14:11
Forums:
Hello,
I just switched to Qt5.5.0 and OCC6.9.1
I tried to start the Qt example, given at samples directory:
The application start, but if the View is created, it crashed at the following lines:
if ( myView.IsNull() )
myView = myContext->CurrentViewer()->CreateView();
Aspect_Handle aWindowHandle = (Aspect_Handle ) winId();
Handle(WNT_Window) hWnd = new WNT_Window (aWindowHandle);
myView->SetWindow (hWnd);
After this line I got an exception, the cursor is placed at heapFree
Whats goining wrong here?
Wed, 10/28/2015 - 14:59
Dear Andreas,
I suggest you to check OCCT Mantis issue 26603 (http://tracker.dev.opencascade.org/view.php?id=26603).
The patch for #26603 also includes correction for the crash.
Best regards
FSR
Wed, 10/28/2015 - 15:25
Dear Supervisor,
thank you very much for response. May I ask how to get and install that patch?
Wed, 10/28/2015 - 18:04
Dear rasmus,
You can download it via the Development portal (see http://dev.opencascade.org/index.php?q=home/get_involved).
First you should register on this site. Branch will be CR26603 (prefix - CR and the issue number - 26603).
Just take into account that this fix applicable to the current development version (i.e. future OCCT7.0.0).
Best regards
FSR
Sat, 01/09/2016 - 00:52
I met the same problem. I cannot follow the above suggestion. How to fix it on OCCT 6.9.1?
Thu, 05/12/2016 - 17:53
Hi,
I have tested with both 6.9.1 and 7.0.0 and I get the same exception at View->SetWindow().
The reply above mentions a patch that's been included in 7 to fix this bug, but I can confirm that it's still there.
Here is my stack trace:
1 RaiseException KERNELBASE 0x756040f8
2 _CxxThrowException VCRUNTIME140 0x5eae4995
3 Standard_Failure::Throw TKernel 0x58360a06
4 Standard_Failure::Raise TKernel 0x583607b2
5 Graphic3d_ShaderProgram::ShadersFolder TKV3d 0x57a7e705
6 OpenGl_ShaderProgram::Initialize TKOpenGl 0x57e05556
7 OpenGl_ShaderManager::Create TKOpenGl 0x57dff6e3
8 OpenGl_ShaderManager::prepareStdProgramFboBlit TKOpenGl 0x57e018ea
9 OpenGl_View::Print TKOpenGl 0x57dcd1f8
10 OpenGl_View::redrawImmediate TKOpenGl 0x57dcf77c
11 OpenGl_View::Redraw TKOpenGl 0x57dcda01
12 V3d_View::Redraw TKV3d 0x57a5536c
13 V3d_Viewer::SetViewOn TKV3d 0x57a60177
14 V3d_View::SetWindow TKV3d 0x57a59101
15 OccView::OccView OccView.cpp 87 0xec48b3
16 occQt::occQt occQt.cpp 59 0xeb80b3
17 main main.cpp 20 0xeb32b2
18 WinMain qtmain_win.cpp 113 0xec9f1d
19 invoke_main exe_common.inl 109 0xec8a3e
20 __scrt_common_main_seh exe_common.inl 264 0xec888a
Fri, 05/13/2016 - 15:11
Dear Mohamed,
Your problem occurs at the same method call but actually unrelated to the bug discussed in this thread.
The raised exception indicates that application didn't initialize the environment variables to mandatory resources (CSF_ShadersDirectory
in this case).
Please make sure you are running sample in designed way (using batch scripts defining environment variables).
The environment variables used by Open CASCADE Technology are described in the corresponding OCCT documentation.
Best regards
FSR.
Sat, 05/14/2016 - 23:43
Thank you! That was my problem indeed.
Sat, 05/14/2016 - 23:55
Sorry I have another license-related question now, if I'm distributing my binaries with dynamic linking to occt, I should sitll include the shaders directory with the software package for the viewers to work, correct? In that case, what are my obligations in terms of licensing? Or is there something else that could be done in that case?
Mon, 05/16/2016 - 11:55
Dear Mohamed,
OCCT version 6.7.0 and later are governed by GNU LGPL version 2.1 with additional Open CASCADE exception:
http://www.opencascade.com/content/licensing
You can find the answers on licensing related questions here:
http://www.opencascade.com/content/faqs
Please, contact us for any additional information.
Best regards,
FSR
Tue, 07/05/2016 - 14:18
Title: View->SetWindow() lead to Debug error
Hi, officer
I successfully debug the program last night. However, when I tried to do it again today, firstly, the program required the related .dll. After I setup the correct path to .dll files, the program just Debug Error. I finally locate the Error code as View->SetWindow(). How can I deal with this issue? Thanks